/* include/kernel/kbitm.h 
 * 
 * This file is part of xnix. 
 * 
 * XNIX is free software: you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by 
 * the Free Software Foundation, either version 3 of the License, or 
 * (at your option) any later version. 
 * 
 * XNIX is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 * GNU General Public License for more details. 
 * 
 * You should have received a copy of the GNU General Public License 
 * along with XNIX. If not, see <https://www.gnu.org/licenses/>
 */ 




#ifndef __KBITM_H
#define __KBITM_H


#ifndef __ASSEMBLER__

#include <sys/types.h>


#define bm_byte(bm, index) 	(((char *) (bm))[(index) >> 3])
#define bm_mask(index) 		(0x80 >> ((index) & 7))

#define bm_read(bm, index) 	(bm_byte(bm, index) & bm_mask((index)))
#define bm_set(bm, index) 	(bm_byte(bm, index) |= bm_mask((index)))
#define bm_clear(bm, index) 	(bm_byte(bm, index) &= ~bm_mask((index)))


#endif

#endif

